Automatic multiple valve control



Nov. 9, 1937. ESTAEGEMANN AUTOMATIC MULTIPLE VALVE CONTROL Filed Sept. 3, 1956 2 Sheets-Sheet l EUGENE STAEGEMANN, DECEASED JESSIE L. SIAEGEMANN, ADMINISTRATRIX.

Nov. 9, 1937. E. STAEGEMANN 2,098,893

AUTOMATIC MULTIPLE VALVE CONTROL Filed Sept. 5, 1936 2 Sheets-Sheet 2 rows) L1 NE EUGENE STABGENANN, DECEASED By JESSIE L. smmmnumnnmmsm'rnzx.

UNITED s'rA-rss sp'rosss'rlc isuurlru: vsLvI-oon'raor;

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s as... (Ci. m-us) Thistlnvention relates to automatic multiple valve control; and it comprises a system of coordinated valve operation tor water treating apparatus such as large seolite water softeners wherein plural conduit valves are provided with individual hydraulic cylinder-pistons or fluid pressure means for actuating each valve, each 0!- the hydraulic valves is individually operated by an electrically controlled. pilot valve directing 10 the pressure fluid, individual electrical motor means operating the several pilot valves are connected in a common electric control circuit provided with individual circuit making and break-. ing rotary switches for the several pilot valve motor'means and the individual switches are actuated by acommon shaft rotated by a master control motor with a master circuit making and a breaking rotor also. rotated by the master control motor, switch means being also provided to energize the mastercon'tro'l motor for rotation of the individual circuit switchesto set the con-' duit valves; all as more fully hereinafter set forth and as claimed.

In building water treating apparatm for large scale operations such as industrial and municipal water softening and water filtering, the use of valvesoperated by power becomes. n.

There have been developed large rotary multiway slide valves operated by electric motors :under automatic control by electrical means: Such an tomatic valve operation is usefuland convenient.

when the single multiway'valvecontrolling s.

plurality of fluid conduits, m a; water treating unit reaches its natural limit or. sine, a battery of two or more units each with asingle electrically operated multiway valve'can'be installed and coordinatedcontrol oi the multiple unit-battery by electrical means becomes possible.

Invthe present invention, a system of plural conduit valves replsces a single muitiway valve ina water treating unit andthesimotthe'sin gie unit can beex'tended beyond any limitation imposed by the multiway valve. And automatic v coordinated operation and control of the Ilgflflf.

as pie valves by electrical means-ls made effective -byhavingeachvalveactuatedbyfluidpressure means such as an hydraulic cylinder-piston worked to open and close theconduitva'lve by a two-way pilot valve on the pressure and'exhaust 60. lines of the hydraulic cyiinchr. with an individ- -vua1 electric motor for each or the pilotrvalves.

and by an'electrical control will which each oithepilot-valvemotorsisconneetedinan:en-' ergisingcircuit'thrmlh u makingandbreaflngrotororrotaryswitcnall o'ttheseveralrotorsarearrangedonaeommon .shait,theshaitismtatedbyamastercontrol 'motoralsorotatinga'mastercireuitmakingand breaklngeontrolrotorsndmeamisprovidedior 5 initially energizing the master control motor throughthemasterrotorto-initlatetherequlnd cycle of valve operations. Alter theinitiatien. theseveral pilotvalveoperationsbothopming andclosingthehydraulicvalvesarecontrolled 'byvfriousswitchmeanseitherto flowconditiomsetupinthetreatingapparatus by thevalve operations or operated by timing motors controlling flow durations. The various individualswitch means arein cireuitwith the "mastereircmtrotorthroughwhichthemaster control motorisenergisedtorotatethesmftaetuating the individual rotary. switches to close Y or open the variouepilot valve motor circuits. Bylocation atsuitableangularpositionsoicontact-segments ior circuit making andbs'eaking switchrotorabothindividualandmasterrotcrs. rotation oi these rotors by the master control motorthroughacompleterevolutionosmdegreesenergisesand d the individual pilotvalvemotorstoopenandclosetheeonduit valvesinthe'orderas ordesirediorthe cycle of water treatlns operationst'obeeon trolled. Electrical '0! therotors-to thepowerlineisconvenientlyandadventageomo lymisde'throtlghabrushcontactingthe -'shs-ftuponwhlchrotor-contactarmsaremount- 'ed, advantageously inthesame angular position.

times-witch ormeansresponsivetothequality s otthesoitenedwaterortothequantityoiwater soi't'ened may be utilised to switch on the master control'motorand thus to make the initiation of r neration automatic. In either iully or-semi-automatie operation of so a seolite' soitening'apparatus. ai'ter the control motor. is initially switched on. it rotatthe individual circuit rotors'throulh an are determined bytheiength oiacontact stripsegmcstin'flie Mmtrolrotorincontactwiththerotwi regenerating operation.

contact arm. When this contact is broken, the control motor stops, leaving individual rotor arms in contact with segment strips completing circuits energizing pilot valve motors to turn pilot valves working the conduit valves for the first When an individual valve is set its pilot valve motor is automatically stopped by an individual circuit breaker operated by the valve motor.

After each step of the regenerating-cycle, the master control motor is energized to rotate the individual circuit rotors, that is, vone or more contact arms, to an angular position making proper segment contacts for switching in pilot valves to operate the conduit valves for the succeeding step, the master motor being deenergized by its circuit breaking rotor and stopped after the valve motor circuit rotors are set in the angular position for each succeeding step.

Closing of the master control motor circuit to shift the individualyalve circuit rotors into each succeeding angular position can, be made by switch means responding to various conditions of flow during the regeneration or the switch means may be operated by timing control motors. For

example, a switch energizing the master control nected in the master control motor circuit after a predetermined time allowing a suitable rinsing flow; the closing of this switch starting the master control motor for the shift of the valve circuit rotors from the angular position for rinsing back to the softening position. A similar timing con trol of back-washing in a down flow softener is advantageous. l

The switching means starting the master control motor for the various steps are readily reset for the next regenerating cycle by reset motorbarn means connected in electric circuits energized by a reset contact rotor rotated with the valve circuit rotors to make segment contacts at suitable angular positions of the contact rotor.

In the arrangement as described, control of the valve operations is centered in the master control motor. Known means for automatic control of the softener operation can be made to control the master motor and throughthis the valve operation. The valves are thus electrically yoked by the individual electric motor operation of the pilot valves under control by the master motor settingthe individual contact rotors to energize the valvemotors.

In the accompanying drawings is shown, more or less diagrammatically an automatic multiple,

valve control system for a zeolite water softener. In this showing,

Fig. 1 is a view in elevation with parts in section of a downflow, gravity, zeolite Water softener with hydraulic valves operated through individual pilot valves adapted for electrical opera- Fig. 4, a section of the pilot valve on line 5-6 of Fig. 3, shows the valve members positioned to open a main hydraulic valve of Figs. 1 and 2;

Fig. 5, a view similar to that of Fig. 4, shows the valve parts of Fig. 4 positioned to close a main hydraulic valve;

Fig. 6 shows in perspective an alternate electrical operation of the valveof Figs. 3-5, a solenoid replacing the small rotary motor of Fig. 2, and

Fig. 7 shows the control system with electrical operating and control connections for the softener of Fig. l.

The phases of operation of the softener shown in Fig. 1 include softening, draining the water contained in softener at end of softening to the level of the bed of zeolite thereby saving water, backwashing the bed of mineral to regrade and clean it, regeneration with brine solution, and

finally rinsing the bed to free it of excess and spent brine.

In the softening phase, valves 6 and t are 371 through pipe db (valve i)'[ and is distributed by trough 3%. A float valve 21! may advantageously'. be located at the end of pipe 36 to prevent overflowing of tank til should the inlet flow vary or the outlet become obstructed or soft water requirements become reduced. The water flowing from trough it passes through the zeolite bed (ill, wherein it is softened and then passes to se'rv ice through pipe dd .(valve t) When the softening power of the zeolite bed becomes exhausted the master control system hereinafter described provides for closing valve i by action of pilot valve Pi admitting pressure water to the top side of the piston of the hydraulic cylinder. The water remaining in tank if is then drained to the level of the bed to service through pipe Gil and valve t. This draining is terminated by. a float switch ltd which energizes the master control hereinafter described to close I valve 3 and open valves 2 and 2A through action of pilot valves Pt and P2 respectively, thus starting backwashlng. V l

Backwashing of the bed is accomplished by untreated water 'flowing through pipe fill, valve 2, right branch of pipe dd, distributor pipes 32, thence upward through the bed, through trough and backwash outlet pipe id, valve 2A and to the sewer. If desired, the flow of water for backwashin'g is controlled by rate of flow controller on pipe as described in the Applebaum Patent 1,4432%92.

The duration of the backwashing phase is timed by an adjustable Wash timer which as hereafter described at the end of} a predetermined period energizes the master controller to close valves 2 and 2A through operation of pilot valve P2 and to open valves 6 and 5 for a brining operation through the action of pilot valves Pd and'PE, respectively. Untreated water then enters through 'line pipe dd (valve it), and intoinjector #15 where brine is drawn from 'brine tank t6 through pipe ill, andthe brine solution is then passed through a check valve 48a into pipe 48 and distributed over the bed of zeolite through distributor pipes 89. The brinesolution passes through the zeolitc bed 39 in tank 3i and discharges able rinse timer (hereinaiter described) theendottherinsingperioiithernaster valve. the master controller is connected electrically with circuit breaker contact N and the electric motor 58 is energized to drive the shaft and rotor of the pilot valve through worms and worm wheels 51 and 58 until the circuit breaker arm 88 leaves contact strip l4, thereby interrupting. the circuit and stopping the valve. In positioning the pilot valve to open the hydraulic valve,

the master controller arranges for electricconnection to contact strip I5, thereby completing the circuit and the motor 59 then turns the pilot valve until arm 58 leaves contact strip 55, thereby interrupting the circuit and leaving the pilot valve in the open position.

In Fig. 3 the pilot valve is shown in axial sec tion, in which view the valve body 80 is shown with pressure water connection 6|, waste water connection 82, and also provided with portplate 88 and valve slide 84 faced with hard rubber surface 65. Port plate II has two parts I2 and I! connected respectively, to pipes Ii and 52 running to the hydraulic cylinder. Valve bonnet is constructed to provide e for valve shaft II through packing gland it and also to receive spring 69 which holds the valve slide 84 ilrmly against the port plate 63. The valve is so positioned in this view as to cause the hydraulic cylinder to open the main valve. The view corredraulic valve.

sponds to that oi Pig. 4 which is a plan section of the valve. Pressure water entering through pipe II and valve chamber ll passes through hole II in slide 64 and port I! in port plate 63 and goes to the hydraulic -cylinder through pipe ll oi Hg. 2, thereby applying .a pressure underneath the piston of the hydraulic cylinder and causing the piston to move upward, thus opening the hy-' Waste water from the top side athe piston passes through pipe I! oi I'm. 2,

through port II oi the port plate, through cavity It or the valve slide. thence through a port It The action of the master controller.

tions the pilot valve to close the hydraulic valve and when contact is made with strip ll, the hydraulic valve is opened. when contact is made This action rotates gear sector Ill about its axis 8!, thereby rotating pinion 82, about the shaft 61 of the pilot valve upon whichit is loosely pivoted. Rotation or the pinion causes pawl I3 to engage a tooth of ratchet wheel 84 and rotate it. Ratchet 84 being'nrmly fastened to the shaft 81 of the pilot valve causes rotation oi the slide it o! the pilot valve to the next position, whereat the contact arm It leaving the contact strip connected to the controller breaks the'circuit through solenoid 80, thereby permitting the plunger II and connecting link ll to be moved upwardby a spring (not shown).' The gear sector is then rotated in the opposite direction as is gear pinion 82. causing pawl, 83 to disengageratchet wheel 84. The proportions of the mechanism are such that each time the solenoid 0 is energized the ratchet wheel 84 and the slide or the pilot valve I rotate exactly gears 80,! and pawl- 08 returning to zero position on deenergizing the solenoid.

Fig. 'I shows a completeelectricai apparatus necessary iorpfully automatic operation of the soitener and includes the master controller which consists oi master control motor ill. rotary circuit breaker "0' for the control motor, rotary circuit switches Cl. C2, C3, C4 and C! which control the action of pilot valves Pi, P2, P3, P4 and PI. r p tively. meter I" on the service line.

controlled by valve 3,'meter switch I01, softener float switch Ill, wash timer Ill, brine tank float switch HI, rinse timer Ill, and reset contact rotor Ill, which'latter device provides for resetting the meter switch, wash timer and rinse timer. This control apparatus is shown in the position corresponding to the return oi the sorte er to the softening phase.

'Ihe rotary rotary switch I". Cl, C2. 03, Cl, C and Ill are drivenby the electric motor ll! through shafts I" and I, which two-shafts are elec-' circuitbreakersormakeandbreak' trically insulated irom'each other by I. The contact armsot the several rotor switches. asahown, namely III, III, I, I2, I", I82. and ill, have the same angular position on the substantially common shaft rotated by master control motor M2.

in the meter switch I M, water flowing through capacity of the bed is exhausted by passage of a" predetermined quantity of water, arm Hit is released by cam Hit and makes contact with contact Mt. This initiates regeneration by completing an electrical circuit through wires 2M, tit, 263:3, contacts M3 and IM, wire 2M, contact strip N3 of circuit breaker Hit, circuit breaker arm M2, shaft ititcircuit breaker brush Mil, wire 28%, motor iiiii, wires 2% and'tt. .The master motor m2 starts and turns all the circuit breaker rotor arms through a certain angle until the master circuit is broken by arm M2 leaving coritact strip I It, when the motor stops, leaving arm M2 in contact with strip Mil.

Rotation of the individual contact rotor arms by shaft HM causes contact arm. I is of individual rotor switch CI to make contact with contact strip I29. By this action an electrical circuit is completed through wires MIL-M2, circuit breaker brush i722, shaft III t, arm flit, strip Iiit, wire 26?, binding post Ida-wire 250, contact strip 5d of pilot valve PI, contact armtt, brush I511, wire 2th, motor 59, binding post I52 and wires 2% and 2%. This completed electrical circuit causes operation of pilot valve control motor W until contact arm 5t leaves strip 5t, thereby breaking the electrical circuit through the control motor after having rotated the pilot valve 180. causes pilot valve PI to close hydraulic valve I and initiates the draining of the softening tank,

3? down to the bed as before described. The pilot valve motor 59 stops itself with the valve in closed position. i t

As the softener is drained to the bed, float I53 of heat switch its drops and causes arm I to contact the contact point I54. An electrical circult is now completed through wires 2!, 2, M5,

contacts I54 and I55, wire 2I5, master rotor contact strip I I4, contact arm I I2, brush I I8,wire 205, motor m2, and wires 206 and 200. This circuit energizes motor M2 to operate and rotate the. contact rotor arms until arm Il2 leaves strip IN,

thereby breaking the electrical circuit and ini tiating backwashing.

As contact arm 2 leaves strip Ill stopping motor Q02 in the backwashing position of the rotor arms, contact arm I23 of rotor switch C3 through the electrical circuit of pilot valve P3;

binding post I8I, wires M8 and 200. In the same manner in which pilot valve Pl.-closed valve I,

pilot valve P3closes valve 3. The v'alve'is automatically stopped inclosed position. At the same time an electrical circuit 'for pilot, valve P 2 is completed from wire 2M to contact strip I24, wire 2 I 9, binding post I56 oi; pilotvalve P2, thence through the electrical motor apparatus of the pilot valve P2, binding post 158 and wires 225 and 200. Pilot valve P2 then opens hydraulic valves 2 and 2A, starting the backwashing of the softener, the valves remaining in open position.

Contact arm I23, making contact with strip I24 of rotor switch C2, thus starting backwashtact Il2, brush M8, wire 205, motor I02 and wires 205 and 200. The master control motor I02 now' rotates until contact arm' H2 leaves strip 6,

. ing, also completes an electrical circuit through the backwash timer W9 from wire 2M to strip I2 3, wire 2%, 'wash timing motor I 62, and wires 220, iii and 2%. This circuit causes timing inotor N32 to operate, thereby rotating its shaft I53 through one-way (free wheeling) drive IN.

Rotation oi shaft its turns wash timing cam I until time for backwashing has expired when contact arm Itt meets contact point Itll. An electrical circuit is now completed between wires 21M, iii i, 222, contacts It?! and Iiit, wire tit, contact strip N5 of master contact rotor MW, contact arm iii, shaft IP33, brush flit, wire 2%, motor W2 and wires 2% and 2%. This circuit energizes motor Hi2 to operate until contact arm- Iii leaves strip M5, whereupon the circuit is broken, stopping motor Hi2 and leaving the individual contact rotor arms positioned to start the brining.

In this position contact arm I233 of rotor switch 0 C2 makes-contact with strip 1125, contact arm tilt of rotor C i makes contact with strip iii, and arm Iii-oi" rotor C5 makes contact with strip I33. Contact between arm I23 and strip I25 completes the circuit from wire 2M to strip I25, wire i226, binding post I517 and theelectrical apparatus of pilot valve P2, binding post I58, and wires 2'25 and 2%.- This circuit energizes the motor 5d of pilot valve P2 to close hydraulic valves 2 and 2A, and thus to stop the backwashing. Qontact of arm I22 with strip I3I completes the circuit from wire 2M throughwire 22h to binding post H2 and the electrical apparatus of pilot valve Pt, binding post I'M, and wires 22I and 2M, energizing the motor 59 of pilot valve PII to open valve 4, and similarly contact between arm I32 and strip I33 completes a similar circuit through the motor means of pilot valve P5 via wire 228, binding post I and electrical ape paratus of pilot valve E5, binding post Ill! and wires 229 and 200, causing valve 5 to open. Brine 'fiowto the zeolite bed 39 is thus started. The

has been drawn, arm I19 of the 'fioat switch makes contact with point I80. This contact completes a circuit through wire 2!", wire 2, wire 23ILcontacts I19 and I80, wire 23!, constrip MB of master contact rotor I00, arm

and-positioning the contact arms to start the rinsing phase.

As arm H2 leaves strip-H6, arm I32 of rotor switch C5 makes contact with strip I34 and completes an electrical circuit through the mecha nism of pilot valve P5 via wire 232 to binding post I16, and from binding post I11 via wires 229 and 200, and. closes valve 5. At the same timecontact arm H9 for pilotvalve Pl makes contact with strip I2l and completes an electrical circuit through the motor means of pilot valve PI via wire 233, binding post I50, contact strip 55 and arm 56, brush I5I, motor 59, and wires 209 and 200,... This latter'clrcuit causes motor 59 to turn .the pilot. valve and arm .56 until arm 58 leaves strip 55, interrupting the circuit after having rotated the pilot valve in whichposition valve I is opened. Opening valve 1i permits water to now through the softener for rinsing p rposes.

As arm I02 contacts strip I04 in rotor C5, an additional circuit is completed through the rinsing timer ill from wire 201 via brush I22 to strip I04, wire 204, rinse timing motor IOI, wires.

205, 2I0 and 200. The resulting operation of motor IOI turning shaft I02 .through one-way drive I causes rinse timer cam I04 to release arm I after a predeterminedinterval of time,.

. motor I02. This circuit causes the driving moof rotor switch C0 meets strip I21 completing a circuit energizing pilot valve P0 to open valve 3. Valve i being already open, softening is resumed.

Resetting of meter switch I01 for initiating the succeeding regeneration is accomplished at the beginning of the draining phase. When master contact rotor arm II2 leaves strip H0 as draining is started, arm I05 of the reset contact rotor switchi0i meets strip I01, thereby completing an electrical circuit from wire 20I to strip 631 through wire 2I0, reset motor I40, wire 2i i, contacts I40 and I41 (which are closed when contacts I48 and I44 meet), and wires 2I2, 2I0 and 200. Motor 0 then operates and turns shaft E40 through a second one-way (free wheel ing) drive Mia until reset cam I45 releases arm Q48, thereby breaking circuit and stopping the motor in such a position that the meter I00 will again release arm I43 to contact point I44 and initiate regeneration whenthe proper quantity 01 water has passed through the softener and the meter.

Resetting of wash timer I00 and 0! rinse timer iii'is accomplished when the softener is returned to softening phase, because when arm H2 leaves strip i I1,arm 13501 the reset contactor meets strip I30, thereby completing an electrical circuit from wire 20i through brush I22,and shaft I04 to strip 600, wire 230, reset motor I01, wire 200, contacts I00 and I00 (which are closed when contacts I05 and I80 are closed), wires 2" and 200, and a second circuit through wires 200 and 240, reset motor I88, wire 2, contacts I and III (which are closed. when-contacts I00 and I01 meet), wires 242, 2" and 200.. The first mentioned circuit causes motor I01 to turn shaft I02 through a second one-way (free wheeling) drive 100a until reset cam I00 releases arm I00 separating contacts I00 and I00, and opening the circuitof motor I01 which'thereby stops in such position that when rinse timing motor IOI again operates, the rinse time is correct. TheLsecond circuit causes motor I00 to turn shaft I00 through a second one-way (free wheling) drive I040 so is properly positioned to cbrrectly time the backwash period when motor I02 next operates.

The circuit through the softener float switch I00 is broken at the beginning of the wash phase, because float I50 rises with the level of the water in the softening tank and contacts I55 and 154 are broken. The circuit through the brine float switch H0 is broken early In the rinsing period when more brine solution is admitted to the brine tank 40 through the small pipe 40a (see Fig. 1), thereby causing float I10 to rise as the brine tank is automatically refllled from storage. This action breaks the circuit through contacts I10 and I80. Means for automatic refilling of the brine tank 46 is described in the copending application of Eugene Staegemann Serial No. 708,553; new matured into Patent No. 2,051,155, granted August 18, 1936.

In the above description of the individual pilot valve motor switches and their actuation by the master control motor, a plurality of individual rotor switch arms in the same angular position have been shown for the sake of clarity. The

principle of coordinated pilotvalve control by the master motor is the same when the contact segments of a plurality of the pilot valve switches are arranged to be contacted by a single rotor\ arm, thus eliminating a number of parts and simplifying the construction. As a matter of fact, there are various suitable types of switch means, other than the contact segment and rotor type shown, that may be used in the individual pilot valve motor circuits.

The backwash timer I00 and the rinse timer I I I may be consolidated in a single timing device provided with two cam contactor switches for the master control motor and with one resetcam contactor for the reset motor circuit.

Other types of pilot valves may replace the construction illustrated in Figs. 3, 4, 5. For ex ample, four individual pilot valves may be yoked together and actuated by a single motor to. coordinate the plural valve operation.

The automatic plural valve actuation and control system as described is readily adaptable to control of apparatus involving a plurality of various fluid flows; in particular water softeners and filters of either gravity or pressure type and op;-

grating with any desired cycle of reconditioning ows.

' What is claimed is: a

l. A coordinated valve operation and automatic control system comprising a plurality of conduit valves, individual fluid pressure devicesfor operating said valves, individual pilot valves actuating said fluid pressure devices, individual electrical motor means for operating each of said pilot valves, electrical circuits for energizing said motors, individual circuit making and breaking switch means for each of said motor circuits, ac-

a plurality of conduit valves, individual fluid pressure devices for operating said valves, individual pilot valves having pressure fluid connections for directly actuating said fluid pressure devices, individual electric motor means for operating each of said pilot valves for said direct fluid pressure valve operation, electrical circuits for energizing said-motor means, individual electrically operated switching means for closing and opening said circuits and electrical control means for said electrically operated means setting the conduit valves in operation.

3. An automatically operated and controlled plural valve system comprising a plurality of conduit valves operated by individual hydraulic cylinder-pistons, individual pilot valves having hydraulic fluid connections for directly actuating said cylinder-pistons, individual electrical motor means for operating saidpilot valves for said direct hydraulic valve operation, individual circuit closing rotor switches for said pilot valve motors, a master control motor actuating said individual switches, circuit breaking means controlling said master control motor and operated thereby and switching means for energizing the master control motor through said circuit breaking means to actuate said individual switches and thereby to operate and control the conduit valves.

4. In automatic water treating apparatus, a

plurality of conduit valves operated by individual 7 hydraulic means, individual rotary pilot valves actuating said individual hydraulic valves and rotated by individual electric motors arranged to be deenergized upon rotation of the pilot valves by their respective motorsthrough predetermined angles, individual circuit malring rotors for energizing each pilot valve motor, a master control motor rotating said individual rotors to energize the pilot valve motors in setting the conduit valves,' control of said valve settings being by control of said master motor, means for controlling the master motor.

5. In an automatic water softener operated by aocaeee a plurality of conduit valves, individual'j fluid pressure devices for actuating said valves, indi vidual pilot valves controlling said iluiol pressure devices, individual electric motor means'ior 7 operating each of said pilot valves, electric circuits for said motor means, individual switches in said several circuits for separately energizing and deenergizing each of said motor means, electrical power means for actuating said individual switchea'an additional electrical circuit for energizing said power means and switch means in said additional electrical circuit for setting said conduit valves in operation.

6. The combination of claim 5, the switch means for the power means comprising in electrical series connection therewith a circuit breaking device operated by said power means to position said conduit valves and a circuit clos- 'ing device operatedby a water meter for starting'said power means for conduit valve operation.

The combination of claim 5, said switch ing device operated by said power means to position said conduit valves and a circuit closing device operated by a time responsive mechanism to start said power means for conduit valve actuation.

I JESSIE L. STAEGEMANN, Administmfirix of the Estate'of- Eiigene Staegemann, Deceased. 

